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TaxRate US – Economic Nexus Lookup
x402
TaxRate US – Economic Nexus Lookup is a paid API for AI agents from x402-taxrate.onrender.com, paid per call via x402, $0.01/call, status down (last checked 2026-10-24).
Returns US sales-tax rates and economic-nexus thresholds for a given state (or all states) to help determine tax obligations.
Price / call$0.01
Success—
StatusDown
How this service works
US sales-tax rate lookup (state granularity) and economic-nexus reference. Terms of service: GET /terms (free). Not tax advice.
Output
Returns the sales tax rate (as a percentage or decimal) and economic nexus reference information for the requested US state, or a complete table of all states if no state is specified. Includes enough detail to determine whether a business must collect and remit sales tax in that jurisdiction.
Example use cases
E-commerce nexus compliance check
“I sell products online and I'm trying to figure out if I've crossed the economic nexus threshold in California — can you pull up the sales tax rate and nexus rules for CA?”
Nationwide tax rate table for finance report
“Can you get me the full sales tax rate table for all US states so I can include it in our quarterly compliance report?”
Startup multi-state tax planning
“We're expanding to New York and Illinois — what are the sales tax rates and economic nexus thresholds for those two states?”
Technical details
Endpoint
GEThttps://x402-taxrate.onrender.com/nexus?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quick, lightweight US state-level sales-tax rate data or economic nexus reference information without requiring a full tax-compliance platform. Ideal for e-commerce agents doing nexus checks, financial tools enriching transaction records with tax rates, or compliance workflows that need a low-cost, per-query tax reference. Not a substitute for formal tax advice or for county/city-level granularity.
Side effects
- Invalid or unrecognized state code returns an error or empty result
- Missing required state param when the full table wasn't intended may return unexpected data
- Service unavailable (503) if the Render hosting instance is cold-starting
- Payment failure (402) if USDC payment of $0.01 is not properly submitted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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